#linuxcnc | Logs for 2014-11-19

[00:00:05] <renesis> heh
[00:00:45] <renesis> thats prob like, hundreds of opcodes!
[00:02:05] <CaptHindsight> http://www.sparetimegizmos.com/Hardware/Elf2K.htm my first computer project
[00:04:13] <CaptHindsight> AUGUST 1976
[00:04:21] <CaptHindsight> http://www.incolor.com/bill_r/elf/html/elf-1-33.htm
[00:04:35] <Jymmm> Does anyone have any thoughts of getting text to align with concentric circles?
[00:06:28] <CaptHindsight> Jymmm: inkscape might do that
[00:06:44] <CaptHindsight> what are you stating with and what do you need for output?
[00:07:19] <Jymmm> CaptHindsight: I'm recreating this http://ecx.images-amazon.com/images/I/812GVgp-DSL._SL1500_.jpg
[00:07:35] <renesis> capthindsight: ha cool
[00:07:48] <Jymmm> I have the text ok, it's the digits that are messing up on even spacing.
[00:08:17] <archivist> my first computer was http://en.wikipedia.org/wiki/MK14
[00:08:20] <renesis> solidworks will def do it
[00:08:44] <renesis> inkscape maybe works, <3 inkscape
[00:08:49] <CaptHindsight> it's easy with Illustrator
[00:09:29] <Jymmm> CaptHindsight: how so?
[00:10:01] <CaptHindsight> you draw the circles and then use them as paths for the text
[00:10:29] <Jymmm> CaptHindsight: This is three concentric circles, the A, A, 1 MUST align
[00:10:36] <renesis> http://3.imimg.com/data3/WO/AQ/MY-263337/8085-microprocessor-trainer-led-ver-st808501-500x500.jpg
[00:10:40] <renesis> i learned on that
[00:11:16] <Jymmm> CaptHindsight: text-on-a-path isn't the issue, it's apcing/ kerning, and alignment.
[00:11:41] <CaptHindsight> Jymmm: I've done it in Illustrator
[00:11:49] <renesis> archivist: could you program your thing from the keypad?
[00:12:18] <CaptHindsight> you can move it around and adjust kerning, track, spacing etc
[00:12:27] <archivist> renesis, yes
[00:12:41] <CaptHindsight> Jymmm: it takes some practice
[00:13:12] <renesis> archivist: hardcore, that was actually pretty fun
[00:13:36] <CaptHindsight> http://en.wikipedia.org/wiki/National_Semiconductor_SC/MP
[00:14:02] <renesis> <3 natsemi
[00:14:07] <archivist> took about half an hour to type moon lander in....
[00:14:15] <renesis> i want to make a hoodie with their last logo
[00:14:24] <CaptHindsight> http://en.wikipedia.org/wiki/RCA_1802
[00:16:38] <CaptHindsight> "DRINK MORE OVALTINE"
[00:16:39] <renesis> unless their is a trick in inkscape it looks really labor intensive
[00:16:54] <renesis> like, align each character and rotate individually =\
[00:16:56] <CaptHindsight> it is even in Illustrator
[00:17:22] <renesis> i dont see any path following option
[00:19:33] <CaptHindsight> https://www.youtube.com/watch?v=VwOYO9cAows How to Put Text on Path (Tips and Tricks) - Inkscape Tutorial
[00:20:52] <renesis> jymmm: solidworks is following curves, has font width and spacing
[00:21:47] <CaptHindsight> https://www.youtube.com/watch?v=XULoT5rTCYE Text Along Path - GIMP 2.8 Tutorial
[00:22:18] <CaptHindsight> I don't think GIMP gives you the same amount of text control
[00:24:41] <renesis> cool, itll full justify around a circle
[01:57:27] <Loetmichel> mornin'
[01:57:28] <Loetmichel> *great*... tipped off my desk chair this morning... no, i am not drunk, the chairs seat plate has broken off the lift :-(
[02:16:27] <Deejay> moin
[06:12:47] <_methods> https://www.youtube.com/watch?v=DJklHwoYgBQ
[06:50:56] * Loetmichel just installed wioin 2008R2 foundation on an ibm server... darn boss, why are you so cheap? had to install a 2008 eval to start the (fujitsu) 2008r2 setup.exe, because if i boot from the foundatuion dvd it says "no fujitsu system, please contact your hardware supplier"
[07:26:11] <_methods> http://1clickbom.com/
[07:27:18] <Loetmichel> _methods: ???
[07:27:47] <_methods> it's a bom builder for electronics
[07:28:02] <_methods> orders from major electronics suppliers
[07:28:33] <_methods> i know a lot of people in here build their own circuits
[07:29:11] <_methods> https://github.com/monostable/1clickBOM
[09:29:40] <archivist> CaptHindsight, that email thread http://xkcd.com/1445/
[09:36:10] <CaptHindsight> it's still going
[09:36:20] <archivist> I know :)
[09:38:09] <archivist> I seem to think no one has mentioned the gantry support rails could be the source of error
[09:39:41] <archivist> are the two outer rails parallel etc
[09:44:38] <_methods> the whole thing is insane
[09:44:44] <_methods> all that to put a v groove
[09:45:05] <_methods> just get a chamfer mill and use a real cnc
[09:46:24] <_methods> man i had to change my mailing list settings because of that insanity
[09:46:51] <_methods> had to put it in digest mode
[09:47:58] <_methods> and for christs sake why not just have the saw head spring loaded and have a follower guide then it would stay the same height the whole way
[09:50:03] <_methods> or have stationary blades and feed rollers that push the material through................
[09:51:08] <CaptHindsight> I just marked them all read and skipped most
[09:51:42] <archivist> worrying about a few thou on wood
[09:51:43] <_methods> once i saw the video............ mind blown
[09:52:22] <_methods> if i ever teach any engineering classes.....that will be my example of overengineering
[09:53:02] <_methods> a router table with a fence and a feed wheel will do that all day long
[09:55:19] <CaptHindsight> now I have to see the video :)
[09:55:39] <archivist> wobbly vision
[09:56:53] <archivist> http://www.youtube.com/watch?v=tFqM_3r4vMs
[09:57:02] <_methods> it's insane in da membrane
[09:59:57] <CaptHindsight> heh
[10:00:57] <CaptHindsight> does it only move the cutting tools X and Z?
[10:01:04] <_methods> yeah lol
[10:02:18] <archivist> https://farm8.staticflickr.com/7190/13911138834_9f4bc62d67_z.jpg
[10:20:43] <tjtr33> re: the bamboo rod cnc. look at any other flyrod machine...
[10:20:44] <tjtr33> they dont use a long bed, they cut over a wheel, so single point support, no chance for this error
[10:25:50] <CaptHindsight> well it looked impressive on paper
[10:36:46] <fuzzy7k> Hi all, I'm in the process of setting up a netbootable image of linuxcnc using gentoo.
[10:37:33] <fuzzy7k> I see the EmcOnGentoo wiki page, which is obviously outdated.
[10:37:41] <CaptHindsight> yes
[10:37:48] <fuzzy7k> Does anyone have an ebuild for linuxcnc?
[10:40:49] <CaptHindsight> we build it for specific hardware and then copy it to other machines
[10:41:15] <fuzzy7k> Second question, if not, can I take the emc2 ebuild and just change the header info?
[10:41:38] <fuzzy7k> So do you build on gentoo or something else?
[10:41:48] <CaptHindsight> a few months ago somebody started a new wiki, but I'll have to look for the location
[10:41:56] <CaptHindsight> we build on Gentoo
[10:42:21] <fuzzy7k> do you have a recent ebuild in your local overlay?
[10:42:38] <CaptHindsight> memleak does all the RTAI development using Gentoo as well
[10:43:26] <CaptHindsight> I'll have to ask him later
[10:44:13] <fuzzy7k> ok, thanks.
[10:44:41] <CaptHindsight> http://sourceforge.net/projects/gentoocnc/
[10:45:47] <CaptHindsight> not sure how far they got
[10:47:03] <fuzzy7k> beautiful, that should give me something to work with for a while.
[10:47:15] <fuzzy7k> Thanks!
[11:03:29] <zeeshan> hi
[11:03:30] <zeeshan> :]
[11:03:33] <ssi> h
[11:03:36] <ssi> i
[11:04:37] <zeeshan> whats up dude
[11:04:46] <ssi> nothin
[11:04:48] <ssi> at work :(
[11:04:55] <zeeshan> youre actually working!
[11:05:02] <ssi> no, I'm AT work
[11:05:06] <zeeshan> haha
[11:30:22] <jdh> work is good.
[11:44:54] <fuzzy7k> Is the maintainer of the gentoocnc sourceforge project here?
[11:45:15] <CaptHindsight> afaik only on the mail list
[11:45:27] <fuzzy7k> Ok, thanks
[11:49:19] <fuzzy7k> Is that emc-developers@lists.sourceforge.net
[11:53:08] <CaptHindsight> yes, they were on the dev list
[11:53:43] <CaptHindsight> last activity was early March of this year
[12:10:04] <zeeshan> this might be an odd question but if you have L1 and L2 (2 pole)
[12:10:08] <zeeshan> and you only break L1
[12:10:09] <zeeshan> what happens?
[12:10:13] * zeeshan has never tried this
[12:10:29] <zeeshan> say L1 and L2 are connected to a 240V single phase motor
[12:10:33] <CaptHindsight> fuzzy7k: #linuxcnc-devel is mostly development with little OT and socializing, but I haven't noticed anyone from that Gentoo project there
[12:10:46] <archivist> the other side stays live
[12:10:50] <zeeshan> but the motor stays off
[12:10:51] <zeeshan> right?
[12:10:57] <zeeshan> *turns off
[12:11:10] <CaptHindsight> yes, but it's still hot
[12:11:26] <fuzzy7k> Ok, I'll check it out. Thanks again.
[12:11:26] <SpeedEvil> zeeshan: If you mean there are two connections to the power supply only from the motor, and both are isolated - then yes - isolating only one will make it stop
[12:11:29] <archivist> electrickery needs a circuit for current to flow
[12:11:30] <SpeedEvil> but may not be safe
[12:11:35] <SpeedEvil> archivist: lies
[12:11:46] * SpeedEvil puts archivist in a microwave oven.
[12:12:03] * archivist puts SpeedEvil in a gas oven
[12:12:30] <DaViruz> a microwave oven is just stretching to concept of a circuit a little
[12:12:43] <DaViruz> the
[12:13:46] <zeeshan> hey guys
[12:13:47] <zeeshan> ww2 is long over
[12:13:57] <zeeshan> :P
[12:14:45] * archivist digs a moat along the english border to keep the scots out
[12:16:08] * roycroft rebuilds hadrian's wall to keep the english out
[12:17:01] <ssi> lul
[12:18:20] <zeeshan> https://www.flickr.com/photos/128539016@N05/15567129830/in/photostream/lightbox/
[12:18:23] <zeeshan> need sanity check
[12:18:48] <zeeshan> DS is a pressure switch that trips when pressure reaches 20 bar. WS is a level indicator which opens if fluid level is low
[12:19:00] * DaViruz rebuilds the berlin wall to keep the east germans in
[12:19:22] <zeeshan> currently the control cabinet has a wire going from pin 1 of DS and pin 3 of WS & DS
[12:19:38] <zeeshan> so i'm imagining the wiring is like this:
[12:20:01] <Connor> what is DK ? :)
[12:20:11] <zeeshan> +24VDC -> pin 3 of WS (will be closed if fluid level is NOT low) -> pin 2 common of ds and ws -> pin 1 of ds (only when pressure has been reached) -> 7i77 input pin
[12:20:17] <zeeshan> this signal is basically an ERROR signal
[12:20:39] <zeeshan> if this is active, that means everything is ok. keep running the pump
[12:21:00] <zeeshan> connor dk will come in a bit :P
[12:21:30] <zeeshan> er i messed that up.
[12:21:39] <zeeshan> sigh :P
[12:22:03] <zeeshan> control cabinet wire is going to pin 1 and 2. not 1 and 3.
[12:22:53] <Connor> right. 3 would be your common.. be it +24v
[12:23:20] <zeeshan> +24VDC -> pin 2 of WS (will be closed if fluid level is NOT low) -> pin 3 common of ds and ws -> pin 1 of ds (only when pressure has been reached) -> 7i77 input pin
[12:24:19] <zeeshan> this is confusing.
[12:24:29] <Connor> you may not need to connect pin 3 to anything.
[12:24:40] <zeeshan> yea i know that
[12:24:44] <zeeshan> its only pin 1 and 2 connected
[12:24:51] <zeeshan> but the thing is im not getting the operation.. im thinking this:
[12:25:06] <Connor> okay.. so, it's a NO and a NC switch in series...
[12:25:27] <zeeshan> if the input is @ 0VDC you know pressure has not built up so keep running the pump? (because there will be flow of electricity through level indicator switch, but not pressure switch)
[12:25:43] <zeeshan> if input is @ 24VDC that means pressure switch has closed
[12:26:00] <zeeshan> but if level indicator switch is open, then input will be at 0VDC and the pump will keep running
[12:26:02] <zeeshan> which makes nos ense
[12:26:04] <zeeshan> * sense
[12:26:44] <Connor> well.. probe the switches and confirm the state they're in..
[12:26:55] <zeeshan> i did
[12:27:05] <zeeshan> i also have the manual which confrism it
[12:27:16] <zeeshan> level indicator opens if fluid is low. its NC.
[12:27:24] <zeeshan> pressure switch is NO. closes when reaches 20 bar
[12:28:02] <Connor> okay. So, have you checked to see if maybe 3 is grounded to chassis ?
[12:28:15] <zeeshan> no
[12:28:19] <Connor> if they're only running 1 & 2 to control ?
[12:28:20] <zeeshan> it doesnt ground to chassis
[12:28:26] <zeeshan> pin 3 has 2 wires going into it
[12:28:35] <zeeshan> from each switch's leg
[12:28:45] <zeeshan> like you said earlier
[12:28:57] <zeeshan> DS and WS are NO and NC switches in series
[12:29:20] <zeeshan> which kinda makes no sense :P
[12:30:07] <Connor> and nothing to indicate where 3 went ? if anywhere ?
[12:30:17] <zeeshan> 3 was never going to the control cabinet
[12:30:32] <zeeshan> if you look at the pic @ the terminal block
[12:30:41] <zeeshan> you'll see theres 2 brown wires connected @ pin3
[12:30:46] <SpeedEvil> Anyone in the UK have a preferred source of extrusions/... that delivers?
[12:30:52] <zeeshan> those brown wires are coming from DS+WS's switch legs
[12:31:25] <zeeshan> i wish i had paid more attention to this part of ripping out wires from the control cabinet
[12:31:33] <zeeshan> i honestly thought this was a self timed unit
[12:31:34] <zeeshan> but its not
[12:31:35] <Connor> Ok, throw a probe on #3 and to the chassis of the machine.. and see if it tones out.
[12:31:57] <zeeshan> ok brb
[12:37:01] <zeeshan> nope
[12:37:09] <zeeshan> no continuity between pin 3 and chassis
[12:37:32] <Connor> and no signs of a broken wire or one that was suppose to go there ...
[12:37:37] <zeeshan> yep
[12:38:14] <zeeshan> my friend just gave me some info from his plc controlled central lubricator (similar to my central lubricator)
[12:38:46] <zeeshan> three alarms will be displayed: 1. if (external) pressure switch does not detect pressure 45secs after the motor is on 2. if (external) pressure switch detects pressure if lubrication is off and pause period has expired 3. if lubrication is locked with M84 command longer than 90secs
[12:39:18] <zeeshan> so it's a timed input.
[12:39:37] <Connor> okay.
[12:39:59] <zeeshan> so basically if input is at 0VDC for 45 seconds after motor is on, error is thrown (which will be the case if DS is open)
[12:40:28] <zeeshan> but if ds closes in that time period it will keep running
[12:40:36] <zeeshan> but if WS opens then input will go back to 0.
[12:41:11] <Connor> WS is the safety interlock for the circuit.. DS is the "timed" sensor input
[12:41:23] <zeeshan> yes
[12:41:27] <Connor> You have your answer. :)
[12:41:57] <Connor> What is this for ?
[12:41:59] <zeeshan> the confusing is still not completed!
[12:42:03] <zeeshan> for the mill
[12:42:06] <zeeshan> central lub
[12:42:12] <Connor> okay.. oiler..
[12:43:09] <Connor> okay.. what are you confused about ?
[12:44:04] <Connor> DS is present to make sure that pressure is present and maintained.. and if it's not.. it shuts down the pump because that most likely means a line broke.
[12:44:23] <zeeshan> yes
[12:44:34] <zeeshan> basically i have 4 conditions
[12:44:43] <zeeshan> that'll put things into alarm mode and turn off the pump
[12:45:55] <zeeshan> the other confusion is power to the pump
[12:46:05] <Connor> ok
[12:46:14] <zeeshan> control cabinet has wires going to:
[12:46:22] <zeeshan> pin 4 5 8
[12:46:26] <zeeshan> and ground ofcourse
[12:46:42] <zeeshan> DK is a manual push button switch.
[12:46:51] <zeeshan> SL1 is an light
[12:46:53] <zeeshan> *light
[12:47:06] <zeeshan> -an = a :P
[12:47:23] <Connor> okay. 5 has something written below it...
[12:47:30] <zeeshan> so its pretty clear that if i wire something to 5 and 8
[12:47:31] <Connor> I think it's a N.. that would be for Neutral
[12:47:33] <zeeshan> the pump motor turns on
[12:47:44] <zeeshan> mine is currently setup for 220V
[12:47:46] <zeeshan> so its L1 and L2
[12:48:01] <zeeshan> nothing is written below pin 5
[12:48:06] <zeeshan> its just a piece of crap there
[12:48:09] <zeeshan> i need to vacuum it out
[12:48:16] <zeeshan> i have no clue how metal chips got in there with the cover on.
[12:48:36] <zeeshan> nema 4 my ass!
[12:48:42] <Connor> No. Right above the wire.. it's clearly black writing.
[12:48:45] <Connor> on 5
[12:49:05] <Connor> I can't see all of it because the wire from 4 loops over top of it.
[12:49:30] <zeeshan> lemme go look
[12:50:59] <zeeshan> all i gotta say is
[12:51:02] <zeeshan> youve got hawk eyes
[12:51:03] <zeeshan> haha
[12:51:08] <zeeshan> how the hell did you see that
[12:51:19] <Connor> Umm.. High Def picture and Zoom
[12:51:27] <zeeshan> i still dont see it
[12:51:29] <zeeshan> im zoomed in
[12:51:29] <zeeshan> !
[12:51:36] <zeeshan> time for glasses for me
[12:51:49] <Connor> But, is is there ?
[12:51:54] <zeeshan> pic coming up
[12:52:00] <zeeshan> yes its a N
[12:52:04] <zeeshan> https://www.flickr.com/photos/128539016@N05/15642968058/
[12:52:51] <Connor> 220 Has no neutral...
[12:52:59] <zeeshan> yes
[12:53:00] <Connor> so.. that's only there if your using it 110
[12:53:47] <Connor> How many wires going into 8 ?
[12:54:25] <zeeshan> this iss such a bs wiring diagram
[12:54:34] <zeeshan> anyway enough whining
[12:54:42] <zeeshan> theres one wire coming from control cabinet to 8
[12:54:53] <zeeshan> and then there is another wire going to the coil of the motor
[12:55:06] <Connor> Okay.
[12:55:11] <Connor> I understand now.
[12:55:18] <Connor> 4 is a manual button.
[12:55:21] <zeeshan> yes
[12:55:34] <Connor> 8 is L1 or L2
[12:56:29] <Connor> so, 8 would be hooked up to a contactor int he control cabinet.
[12:56:43] <zeeshan> i think im gonna use a relay
[12:56:47] <Connor> questions is, were is the other end of the circuit.
[12:56:48] <zeeshan> cause its such a small amount of current
[12:56:51] <zeeshan> yes :P
[12:57:00] <zeeshan> the only thing that makes logical sense to me
[12:57:04] <Connor> is it on the motor itself.. ?
[12:57:22] <Connor> and how do you know this is low current ?
[12:57:36] <Connor> I see no current info for the motor.. just for the 2 switches..
[12:57:53] <zeeshan> i have so many windows open i lost the pic
[12:57:54] <zeeshan> haha
[12:58:18] <zeeshan> https://www.flickr.com/photos/128539016@N05/15208336383/
[12:58:21] <zeeshan> motor specsare on the motor
[12:58:48] <zeeshan> http://www.ebmpapst.com/en/products/motors/shaded-pole_motors/shaded-pole_motors_detail.php?pID=98603
[12:58:49] <Connor> I don't see how many amps it pulls
[12:58:53] <zeeshan> 0.5A
[12:59:02] <Connor> ok
[12:59:43] <zeeshan> okay so im thinking it works like this:
[13:00:03] <zeeshan> fuse holder 0.5A -> L1 -> pin #4
[13:00:10] <zeeshan> in parallel from that same fuse holder
[13:00:31] <zeeshan> -> L1 -> relay contact -> pin 5
[13:01:44] <Connor> NO
[13:01:55] <Connor> not L1 to relay to pin 5
[13:02:01] <Connor> L1 to relay to pin 8
[13:02:06] <Connor> l2 on p5
[13:02:48] <Connor> SL1 will light up when DK is pressed.. or power applied to p8
[13:02:54] <Connor> as well as the motor will turn on.
[13:02:58] * zeeshan thinks about this.
[13:03:18] <Connor> 8 and 4 are parallel to each other..
[13:03:33] <Connor> so, you can't hook one side up to L1 and other the other up to L2 without shorting out.
[13:04:47] <zeeshan> what goes to pin 4then
[13:04:56] <zeeshan> i see the motor working correctly with l1 at pin 8
[13:04:59] <zeeshan> and l2 on p5
[13:05:10] <Connor> L1 ON PIN 4 TOO
[13:05:21] <zeeshan> okay i'm slow
[13:05:23] <zeeshan> i see it now :)
[13:07:00] <zeeshan> its so weird
[13:07:05] <zeeshan> only l1 is being switched
[13:07:13] <jdh> s/its/I\'m/
[13:07:23] <zeeshan> i thought in 240v circuits
[13:07:26] <zeeshan> you had to switch both l1 and l2
[13:07:32] <zeeshan> for safety.
[13:07:41] <Connor> normally you do.
[13:09:08] <Connor> But, since this is all enclosed.. they probably feel that it's safe.
[13:09:17] <jdh> I have a 240vac coil on my compressor contactor. It's creepy working near it since one side is always hot
[13:10:44] <zeeshan> hehe
[13:10:53] <zeeshan> i guess this is why you have lockout procedures
[13:11:32] <Connor> You might be able to use some sort of timed relay in that mix so that you don't have to use linuxcnc logic to handle it..
[13:11:43] <zeeshan> Connor: i'd like to do a couple things
[13:11:49] <zeeshan> i want to ensure machine is on
[13:11:54] <zeeshan> axis are active
[13:12:02] <zeeshan> only then lubrication will be on
[13:12:10] <zeeshan> otherwise it'll sit there wasting oil while the machine is idle
[13:12:58] * zeeshan wishes he didnt give away his 24vdc relays
[13:12:59] <zeeshan> :-(
[13:13:02] <zeeshan> i had like 10
[13:13:10] <zeeshan> i gave em to my buddy
[13:13:17] <zeeshan> now i need 3
[13:13:19] <zeeshan> :{
[13:13:23] * zeeshan calls friend
[13:15:13] <andypugh> SpeedEvil: Have you looked at RS for extrusions? I seem to recall that they are surprisingly competitive
[13:17:05] <andypugh> Or maybe Marchant Dice: http://www.worldofcnc.com/collections/retrofit-frame/products/aluminium-structural-section-profile
[13:19:36] <jdh> Connor: got your ballscrews in?
[13:26:47] <Loetmichel> *haach, better* now i can sit again. not the most beautiful chair but cheap and works...-> http://www.cyrom.org/palbum/main.php?g2_itemId=15395 ... on the copntray to the chair that had tipped me off to the ground this morning: http://www.cyrom.org/palbum/main.php?g2_itemId=15392
[13:35:00] <SpeedEvil> andypugh: thanks
[13:36:23] <zeeshan> summary of control of lubricator:
[13:46:07] <Connor> jdh Installed? No. Not yet. just got 2 of the 3 ballnut mounts made.. Still need to mill out the base of the mill and make the X ballnut mount.
[13:46:30] <jdh> Loetmichel: I think I had that same chair. The material teh bolts went in to dissolved.
[13:46:49] <jdh> I 'fixed' it for a year or so with a piece of 1/4" plywood
[13:47:01] <zeeshan> ER
[13:47:03] <zeeshan> fak.
[13:47:11] <jdh> coudl you scream a little louder please?
[13:47:37] <jdh> Connor: the X one is pretty simple
[13:47:41] <Connor> Yea.
[13:48:09] <zeeshan> connor if you have a sec
[13:48:10] <zeeshan> https://www.flickr.com/photos/128539016@N05/15828728265/
[13:48:11] <jdh> Leeloominaiaasdf could whip that out in 5 mins with a drillpress anda file.
[13:48:13] <zeeshan> does this logic make sense? :)
[13:48:41] <jdh> z: just write it in ladder
[13:49:12] <zeeshan> using classic ladder?
[13:49:22] <jdh> yes
[13:49:59] <zeeshan> okay
[13:50:02] <zeeshan> that looks way more familiar
[13:50:03] <zeeshan> ahha
[13:50:11] <zeeshan> it woulda been a nightmare trying to do it in hal config
[14:00:15] <andypugh> I would have written a HAL component for that, I think. Oneshots and timers would probably work, though.
[14:10:29] <Connor> andypugh: When you write a component like that.. what would it be.. a python script? or true C or what ?
[14:10:52] <andypugh> C
[14:11:08] <andypugh> (well, .comp preprocessing really)
[14:11:40] <andypugh> Have you not seen http://www.linuxcnc.org/emc2/docs/2.7/html/hal/comp.html ?
[14:11:57] <Connor> I've looked at it..
[14:12:07] <Connor> never written a custom comp though
[14:12:28] <andypugh> If you already know C it’s really easy. If you don’t it isn;t :-)
[14:12:48] <Connor> I do know C, but, I'm a tad rusty.
[14:14:51] <andypugh> The logic presented would probably have to be written as a state-machine. One thing about .comp code is that it has to run straight through to completion every time it is called.
[14:15:22] <zeeshan> MAN
[14:15:27] <zeeshan> these comb bus bars are AWESOME
[14:16:54] <zeeshan> https://www.flickr.com/photos/128539016@N05/15828894215/
[14:17:27] <zeeshan> they are so compact
[14:18:49] <zeeshan> andypugh: name of hal component?
[14:19:07] <Connor> zeeshan: Those look kind of $$$
[14:19:19] <zeeshan> how much do you think they cost
[14:19:56] <zeeshan> http://www.automationdirect.com/adc/Shopping/Catalog/Circuit_Protection_-z-_Fuses_-z-_Disconnects/Fuses_-a-_Fuse_Holders/Fuse_Holders,_Fuse_Blocks_-a-_Accessories/Midget_and_Class_CC_Fuse_Holders,_Fuse_Blocks,_-a-_Accessories/EB1P100M3
[14:19:59] <zeeshan> 6.25 for each bus bar
[14:20:04] <zeeshan> (they come with different number of pins
[14:20:05] <zeeshan> er
[14:20:14] <zeeshan> wrong link.
[14:20:16] <zeeshan> http://www.automationdirect.com/adc/Shopping/Catalog/Circuit_Protection_-z-_Fuses_-z-_Disconnects/Fuses_-a-_Fuse_Holders/Fuse_Holders,_Fuse_Blocks_-a-_Accessories/Midget_and_Class_CC_Fuse_Holders,_Fuse_Blocks,_-a-_Accessories/EB1P100M6 9.25
[14:20:30] <zeeshan> lugs are 10 bux each
[14:20:38] <zeeshan> so basically 60 ish bux for all that
[14:20:49] <zeeshan> i needed 4 lugs total
[14:21:51] <Connor> http://www.ivdc.com/cnc/mill_10_31_14_01.jpg
[14:21:55] <Connor> Mine.
[14:22:04] <Connor> I've done more wiring since this picture..
[14:22:13] <ssi> Connor: looking good!
[14:22:26] <zeeshan> connor
[14:22:33] <zeeshan> where did you buy those 24vdc relays with holders again
[14:22:35] <zeeshan> i need to order.
[14:22:54] <Connor> get'm anywhere except where I did.. I got them off of ebay.
[14:23:03] <zeeshan> why whats wrong with yours
[14:23:15] <Connor> first 4 I got were good.. next 2 were larger and the relays had pins instead of tabs.
[14:23:27] <Connor> and didn't want to stay in very well.
[14:23:31] <zeeshan> bah
[14:23:38] <Connor> http://www.ivdc.com/cnc/mill_10_27_14_01.jpg
[14:24:16] <Connor> My breakout box on back of the mill.. this is were limits/homes, spindle encoders, solenoids, etc will wire into..
[14:25:01] <Connor> ssi: How's it going ?
[14:25:29] <zeeshan> http://www.ebay.com/itm/DIN-Rail-Mount-2-SPDT-16A-Power-Relay-Interface-24V-DC-OMRON-Relay-Industrial-/191413482432?pt=LH_DefaultDomain_0&hash=item2c9121f3c0
[14:25:31] <zeeshan> wow these are nice
[14:25:32] <zeeshan> so compact
[14:26:16] <jdh> thsoe are huge
[14:26:21] <ssi> slow
[14:26:24] <zeeshan> its 2 relays
[14:26:50] <Connor> Looks like you could add flyback diodes..
[14:26:54] <Connor> I had to on mine.
[14:26:56] <jdh> yeah, you could fit 12 in taht much space
[14:27:17] <zeeshan> jdh ok link?
[14:27:22] <zeeshan> din rail mounted
[14:27:23] <zeeshan> thanks :P
[14:28:29] <zeeshan> http://www.ebay.com/itm/DIN-Rail-Mount-4-SPDT-Power-Relay-Interface-Module-OMRON-10A-Relay-24V-Coil-/131329278126?pt=LH_DefaultDomain_0&hash=item1e93d5c0ae
[14:28:31] <zeeshan> another sexy one
[14:28:31] * jdh digs through drawer
[14:29:08] <zeeshan> these ones look like they have a flyback diode in them already
[14:29:11] <zeeshan> i see the 1n4007
[14:29:49] <zeeshan> its gonna take 10 years to get those relays though
[14:29:54] <zeeshan> damn chinese shipping!
[14:31:44] <jdh> z: http://www.ebay.com/itm/311161340956
[14:32:58] <zeeshan> is that a solid state relay?
[14:33:33] <jdh> http://www.ebay.com/itm/381056221985
[14:33:59] <jdh> some are, some aren't. it is a base with a small plug-in relay
[14:34:12] <zeeshan> those are tiny!
[14:34:49] <zeeshan> i wonder if the 6A rating is resistive load
[14:34:51] <zeeshan> or inductive
[14:35:24] <zeeshan> also looks like those have flyback diodes
[14:35:48] <andypugh> I bought one of these recently. Nice metal DIN clip, cover. Looks good. http://www.ebay.com/itm/290913891799
[14:36:02] <zeeshan> that is nice
[14:36:05] <zeeshan> but 3 times the size!
[14:36:44] <jdh> DC SSR though, looks nice.
[14:37:31] <andypugh> Yes, I specifically wanted a DC one, it is for an Arduino to drive a Pulse clock.
[14:38:40] <zeeshan> jdh those are sweet
[14:38:43] <zeeshan> i think they'll work for me!
[14:39:06] <jdh> careful with ebay buys. the part number is just the base.
[14:39:22] <zeeshan> oh
[14:39:25] <zeeshan> it doesnt have the relay.
[14:39:25] <zeeshan> :/
[14:39:48] <jdh> the picture shows the relay
[14:40:24] <jdh> but, there are different relay modules
[14:42:38] <jdh> there are buss slots on them too. uses a flat bar
[14:46:48] <andypugh> Talking about Bus-bars. Somthing that exists but seem hard to find are the commoning strips for DIN-rail terminals. You know the mysterious empty hole in the middle of a DIN-rail terminal? It’s to screw these in to: http://www.ebay.co.uk/itm/10-Way-Jumper-Bar-for-2-5mm-Din-Rail-Terminal-/400732950770?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item5d4d8b90f2
[14:47:54] <jdh> they seem to be mfg specific
[14:48:03] <andypugh> Yeah, that too.
[14:49:04] <jdh> I have a few boxes of 20-pole weidmuller ones here
[14:49:32] <jdh> they fit the tri-level terminal blocks also
[14:51:02] <andypugh> I was merely pointing out their existence:-)
[14:55:06] <Loetmichel> *hrrmph* by now the bottle of "Laphroaig Cask Strength Batch 006" should have arrived here. paid it at 11/12. And no i would have liked a glass of that ;)
[14:59:19] <CaptHindsight> Loetmichel: I like Islay's as well
[15:19:01] <andypugh> SpeedEvil: Did you see the furnace-making blog entry?
[15:19:27] <andypugh> I think that a stainless-steel toilet roll holder from Tesco would make a decent outer shell.
[15:59:12] <SpeedEvil> andypugh: ?
[15:59:32] <andypugh> Which statement are you querying?
[16:07:39] <SpeedEvil> uSpeedEvil: Did you see the furnace-making blog entry?
[16:16:54] <andypugh> SpeedEvil: http://bodgesoc.blogspot.co.uk/2014/11/heat-treatment-furnace.html
[16:18:08] <SpeedEvil> nice how-to
[16:18:26] <SpeedEvil> I diddn't - I've been in a coma most of today - moved too much plywood
[16:18:32] <SpeedEvil> and cutting it in unsafe ways
[16:19:47] <SpeedEvil> trying to get an actual shop setup which is not multipurposed as any other room or dragging stuff into the garden to do
[16:20:27] <SpeedEvil> so basically refitting an old metal shed with insulation and walls and ...
[16:21:54] <Deejay> gn8
[16:22:10] <SpeedEvil> And yeah - I have an old not-very-uniform kiln of uncertain spec too, but was wanting an actually accurate one
[16:31:04] <andypugh> For a really accurate one I would be looking at more than one thermocouple, including one buried in the element to keep that below max service temp.
[16:32:15] <andypugh> The MAX13855 chip connects nicely to the Arduino SPI to measure K-type thermocouples. That would let you control 2 zones and limit element temp too.
[16:35:46] <SpeedEvil> indeed. it'd be interesting to measure actual delta-t
[16:38:08] <renesis> guys anyone know anything about flow meters?
[16:38:25] <andypugh> Ihave used them
[16:38:37] <andypugh> What sort of flow do you want to measure?
[16:38:40] <renesis> no i mean making them
[16:38:54] <SpeedEvil> what sort of flow meter
[16:39:01] <SpeedEvil> ultrasonic, corrolis, ...
[16:39:07] <andypugh> So you are not looking at laser doppler then?
[16:39:07] <renesis> like, 60-100psi through 2" pipe or so
[16:39:18] <SpeedEvil> air?
[16:39:26] <renesis> i wanted to try a pair of temp sensors and heater
[16:39:32] <renesis> no water
[16:39:44] <renesis> agriculture stuff i guess
[16:39:46] <andypugh> Try a car MAF sensor?
[16:39:50] <SpeedEvil> what sort of flow rate?
[16:40:14] <renesis> andypugh: i want less mechanical
[16:40:22] <andypugh> (A MAF sensor _might_ work for water, and the world is full of them)
[16:40:31] <SpeedEvil> I suspect if it's the flow rate I'm thinking of, heater is going to be utterly useless
[16:40:37] <SpeedEvil> unless it's megawatts
[16:40:42] <renesis> speedevil: i dunno, you turn on a regulated tap on a house
[16:40:51] <renesis> thats maybe few gpm?
[16:40:53] <SpeedEvil> oh
[16:41:02] <SpeedEvil> right - I was thinking it was a spraygun
[16:41:18] <SpeedEvil> that's not much flow at all in a 2" pipe
[16:41:20] <andypugh> renesis: The MAF sensors I am familiar with use a heated element, no moving parts.
[16:41:38] <renesis> im hoping maybe a few watts through a precision resistance and a couple of thermocouples
[16:41:44] <SpeedEvil> water has ~4000 times the thermal capacity
[16:41:44] <renesis> andypugh: oh neat
[16:41:48] <zeeshan> maf is meant for air flow
[16:41:59] <renesis> yeah but the air is going much faster
[16:42:06] <renesis> so maybe it works out
[16:42:12] <zeeshan> it works through density change
[16:42:13] <zeeshan> or something
[16:42:14] <zeeshan> i forget
[16:42:16] <SpeedEvil> you need ~20kW to boil a few GPM
[16:42:18] <renesis> but its a start
[16:42:23] <andypugh> zeeshan: I know, but they might work and there are many around to experiment with,
[16:42:25] <SpeedEvil> do you want hot water?
[16:42:32] <zeeshan> why use something not meant for it?
[16:42:32] <renesis> no i dont want hot at all
[16:42:39] <zeeshan> theres plenty of flow measurement devices out there
[16:42:45] <zeeshan> cheap one is a manometer
[16:42:50] <zeeshan> more expensive is a rotameter
[16:42:53] <renesis> you heat a point and measure the temp
[16:43:01] <renesis> and then monitor the temp of another point
[16:43:09] <zeeshan> thats a hot wire maf sensor
[16:43:10] <SpeedEvil> renesis: yes - that relies on heating the fluid
[16:43:11] <renesis> and the delta is related to flow rate
[16:43:16] <renesis> no flow, theyre the same temp
[16:43:30] <SpeedEvil> oh - not quite that
[16:43:33] <SpeedEvil> hmm
[16:43:40] <renesis> speedevil: right so how much heat prob depends on how sensitive the tc measurement
[16:43:46] <zeeshan> you can even use a venturi tube
[16:43:47] <renesis> and how far the tc
[16:43:59] <renesis> and how much heat
[16:44:14] <SpeedEvil> renesis: this will be affected by scaling too
[16:44:22] <andypugh> If you are making one for fun, carry on. But: http://www.ebay.co.uk/itm/SEN-HZ21WI-G1-2-Male-Thread-Brass-Hall-Effect-Water-Flow-Sensor-1-30L-min-/121377870238
[16:44:40] <zeeshan> hall effect?
[16:44:46] <zeeshan> does it have like a turbine in there
[16:44:49] <zeeshan> and you measure velocity?
[16:44:49] <andypugh> I guess a magnetic paddle
[16:44:52] <zeeshan> nice
[16:44:55] <zeeshan> thats so cheap
[16:45:12] <SpeedEvil> that's not 2" pipe
[16:45:39] <andypugh> True, that’s 1/2” Gas (which is a lot bigger than 1/2”)
[16:45:43] <SpeedEvil> Also, that's not a flow switch
[16:45:46] <SpeedEvil> err
[16:45:50] <SpeedEvil> that is a flow switch
[16:45:54] <SpeedEvil> not a measuring device
[16:46:00] <SpeedEvil> it triggers on any flow
[16:46:56] <andypugh> You are probably right
[16:47:08] <zeeshan> andypugh: i take it back
[16:47:13] <zeeshan> they do make karman vortex sensors for water
[16:47:17] <zeeshan> http://www.bibus.de/fileadmin/editors/countries/biulm/product_data/ckd/documents/CKD-WFK3000-Serie_EN.pdf
[16:47:55] <SpeedEvil> renesis: is there a reason why you're trying to measure 2" pipe - not at a smaller diameter at the end?
[16:48:21] <SpeedEvil> renesis: and are you trying to measure flow, or volume
[16:48:21] <zeeshan> PPS resin (internal: piezo-electric ceramic)
[16:48:24] <zeeshan> interesting sensor
[16:48:29] <renesis> want it to flow through like normal plumbing
[16:48:57] <SpeedEvil> renesis: if you're trying to measure flow - over time - and care about say 10 gallons over the day, ...
[16:49:03] <zeeshan> does it need to be digital?
[16:49:13] <zeeshan> cause a flow rotameter you can make at home :D
[16:49:25] <zeeshan> its just a tapered tube with a float
[16:49:42] <andypugh> This one _might_ be a flow measurement device, it’s hard to tell: http://www.ebay.co.uk/itm/0-75-5L-Min-800W-1PT-Male-Female-Thread-Brass-Water-Flow-Rate-Sensor-Counter/191363303666
[16:50:22] <renesis> http://www.flowmeters.com/thermal-technology
[16:50:26] <renesis> i think i mean this
[16:50:40] <zeeshan> thats like a hot wire maf sensor
[16:51:13] <renesis> heaters and tc probes are reliable
[16:51:27] <renesis> heater prob wont ever need to be services, tc are easy to replace
[16:51:30] <renesis> cheap
[16:51:53] <zeeshan> look at the inside a plumbing systenm
[16:51:53] <andypugh> To not answer the question asked, these USB flow meters are really rather nice for small gas flows: http://www.red-y.com/en/products/smart/index.html
[16:51:55] <zeeshan> thats been operation for years
[16:52:04] <zeeshan> the amount of corossion build up is intent.
[16:52:06] <zeeshan> *intense
[16:52:13] <zeeshan> so your problem will get owned =P
[16:53:03] <renesis> zeeshan: yeah im not sure its a concern if the probes protrude enough
[16:53:17] <zeeshan> youre changing the thermal resistance
[16:53:18] <zeeshan> over time
[16:53:58] <renesis> yeah but the level of buildup might not be as significant as on the walls
[16:54:19] <renesis> also, mechanical flow meters can be fucked up the the same shit
[16:54:33] <renesis> servicing this is like, bottle brush
[16:55:03] <zeeshan> this is why in lab setups
[16:55:06] <zeeshan> you'll see a manometer
[16:55:11] <zeeshan> theres nothing to service.
[16:55:54] <renesis> not sure i can derive flow from pressure
[16:56:01] <zeeshan> ofcourse you can
[16:56:06] <zeeshan> thats how MAP based sensors work on cars
[16:56:07] <SpeedEvil> zeeshan: in a 2" pipe?
[16:56:08] <renesis> its not a fixed load, and its def not a lab environment
[16:56:13] <SpeedEvil> zeeshan: at gallons per hour?
[16:56:23] <SpeedEvil> zeeshan: the pressure difference is going to be fuck all
[16:56:24] <zeeshan> SpeedEvil: the tube would stick out from the pipe
[16:56:26] <zeeshan> it's not inline
[16:57:05] <renesis> to get current from voltage you need to know the resistance
[16:57:07] <zeeshan> http://www.efunda.com/formulae/fluids/venturi_flowmeter.cfm
[16:57:14] <renesis> look man i know all about plumbing because im good at electronics
[16:57:33] <renesis> dont ask me how to wire up a building tho
[16:57:46] <zeeshan> SpeedEvil: play with the calculator
[16:57:51] <zeeshan> you'll see its very easily possible :P
[16:58:20] <SpeedEvil> zeeshan: yes - with a venturi - trivially
[16:58:44] <SpeedEvil> I thought the idea was to stay on 2' for some reason
[16:59:03] <renesis> just because its easy to poke shit into the side of a pipe
[16:59:14] <SpeedEvil> Also - at 2' you're going to run into an issue where it's large enough to setup convection cells, I suspect
[16:59:19] <zeeshan> it's not about easy
[16:59:20] <renesis> and id rather not restrict flow in any way
[16:59:22] <zeeshan> its about "reliable"
[16:59:23] <zeeshan> :P
[16:59:38] <renesis> easy to fab is usually reliable
[16:59:54] <andypugh> You could use a different automotive sensor (because they are cheap commodity parts). Venturi and a delta-pressure sensor from a diesel engine particulate filter.
[17:00:07] <renesis> a heater and two tc is prob going to be more reliable than two pressure sensors
[17:00:20] <renesis> tho thats not a bad alternative
[17:00:59] <renesis> and id rather stay away from off the shelf parts and end product would have lots of parallel channels
[17:01:41] <renesis> a thermocouple amp is a lot easier to multiplex than a pressure sensor
[17:01:55] <renesis> and thermocouple cable is cheap
[17:02:24] <andypugh> (Actually, looking at DPF pressure sensors, it looks like they are only actually cheap to the car makers, £40 on eBay for a part we pay $5 for)
[17:02:54] <renesis> tons of pressure sensors does not seem cheap, tons of valves to multiplex a sensor does not sound cheap, pressure tube lengths affecting measurements does not sound good
[17:02:59] <andypugh> renesis: For ambient temps you can use extension cable rather than thermocouple wire.
[17:03:13] <renesis> i always use extension, heh
[17:03:39] <renesis> for multichan data log setups, we twisted and soldered, used CA glue to mount
[17:03:56] <andypugh> My thermocouple was at 850°C last night, I don’t think the extension wire would have coped.
[17:04:05] <zeeshan> egt?
[17:04:06] <renesis> for quick stuff, i usually just twist tight maybe 8 times and clip
[17:04:14] <renesis> i want to try welding the extension wire
[17:04:40] <renesis> the wire tc probes response way faster than any expensive stuff could
[17:04:44] <andypugh> There isn’t much point. All you actually need is an electrical contact with no voltage drop.
[17:05:05] <renesis> what is an electrical contact with no voltage drop at uV?
[17:05:05] <andypugh> The “magic” is in the wire, not the junction.
[17:06:04] <renesis> and i just want to weld because twist and solder doesnt work well long term
[17:06:36] <andypugh> What I am saying is that as long as both legs are effectively shorted together, with no funny chemistry happening in the joint, then it will work.
[17:06:40] <renesis> the solder is mostly a mechanical bond, doesnt wet for shit on the tC wire
[17:06:48] <renesis> yes i know
[17:06:59] <zeeshan> cheapos
[17:07:01] <zeeshan> buy a probe
[17:07:05] <andypugh> We used to use a capacitor-discharge spot-welder.
[17:07:13] <renesis> probes dont work as well
[17:07:18] <renesis> theyre slow
[17:07:19] <zeeshan> andypugh: you were making your own themocouples?
[17:07:25] <andypugh> Yes.
[17:07:26] <zeeshan> K type are pretty quick!
[17:07:32] <zeeshan> thats what i use to measure exhaust temp
[17:07:35] <renesis> andypugh: yeah thats what i wanted to try
[17:07:48] <zeeshan> http://i00.i.aliimg.com/wsphoto/v0/304281180/10pieces-lot-K-Type-EGT-Thermocouple.jpg
[17:07:49] <zeeshan> that crap
[17:07:51] <renesis> cap bank and some copper studs
[17:08:01] <renesis> haha, yeah slow
[17:08:15] <andypugh> Just spot weld chromel and alumel wires very close together to the same specimen and you get a very fast response.
[17:08:15] <renesis> expensive and slow
[17:08:21] <zeeshan> well it handles
[17:08:22] <zeeshan> 1800F
[17:08:25] <zeeshan> so im happy with it
[17:08:40] <renesis> right if you dont need the temp resistance theyre a waste of money
[17:08:56] <andypugh> I was measuring the quench-rate of steel specimens into a molten salt bath.
[17:08:59] <renesis> you cant get faster than just wires
[17:09:03] <zeeshan> andypugh: nice!@
[17:09:22] <zeeshan> i forgot
[17:09:25] <zeeshan> you're mr materials :)
[17:09:29] <renesis> andypugh: have you tried just spot welding the wires?
[17:09:32] <andypugh> So speed was important, and each thermocouple did one test.
[17:09:43] <renesis> to themselves
[17:10:07] <andypugh> It was a while ago, and I just realsied that I am confusing two things.
[17:10:37] <andypugh> We spot-welded probe wires to samples to measure crack-growth.
[17:10:47] <renesis> so you had suicidal tc probes?
[17:11:37] <andypugh> Thermocouples were welded in an inert atmosphere using a similar sort of set-up then peined into a spark-eroded hole in the sampls.
[17:12:57] <renesis> so you made welded wire probes and then hammered them into a hole
[17:13:01] <andypugh> Yes
[17:13:14] <renesis> neat
[17:13:31] <andypugh> Then heated to 850C and dropped out of the bottom of the tube furnace into molten sodium hydroxide
[17:13:52] <andypugh> Then cut-back the wires, made a new junction, and repeated.
[17:14:10] <renesis> so i was thinking of doing little potted plugs
[17:14:25] <renesis> like, one with a tc, and one with a tc and a heater
[17:14:59] <renesis> and its like, city water temp so nothing has to be special
[17:15:05] <andypugh> I think we used gas and air to weld, but interestingly Alibaba is full of oxy-hydrogen sets for the job: http://www.alibaba.com/showroom/oxy--hydrogen-thermocouple-welding-machine.html
[17:15:13] <renesis> can maybe just use temp sensor IC, too
[17:15:27] <renesis> i dunno how precise this shit needs to be really
[17:16:48] <renesis> temp sensor ic prob way slower
[17:18:10] <renesis> andypugh: ha neat pic of all the little welded TC ends in that link
[17:19:13] <andypugh> Ah, they really are selling just a little welding torch
[17:20:07] <andypugh> My sister uses exactly that setup for jewellry, the cutest welding torch in the world with hypodermic syringes for nozzles.
[17:20:41] <andypugh> I seem to recall ours were welded inside a glass tube, but it was 25 years ago.
[17:30:03] <zeeshan> https://www.flickr.com/photos/gsfc/4790394066/
[17:30:04] <zeeshan> man
[17:30:07] <zeeshan> i miss hubble
[17:30:47] <zeeshan> i wonder how good james webb space telescope will be
[17:32:08] <andypugh> It should be better
[17:33:12] <ssi> I need to get my manual mill under power tonight
[17:33:12] <zeeshan> http://en.wikipedia.org/wiki/James_Webb_Space_Telescope#mediaviewer/File:James_Webb_Primary_Mirror.jpg
[17:33:13] <zeeshan> so sexy
[17:33:22] <ssi> and then build a fixture to start doing these enclosures
[17:33:53] <zeeshan> i wonder how long those mirrors took
[17:33:58] <zeeshan> to make :P
[17:34:17] <ssi> incorrectly
[17:34:18] <ssi> hahaha
[17:34:22] <zeeshan> how in the world do you clean a mirror like that
[17:34:26] <zeeshan> touching that would own it
[17:35:51] <ssi> looks like they're going to play the most expensive game of settlers of catan ever
[17:36:34] <andypugh> I love the “Overwhelmingly large Telescope”: http://en.wikipedia.org/wiki/Overwhelmingly_Large_Telescope as a name.
[17:37:05] <ssi> aw, they scrapped it for the Extremely Large Telescope :(
[17:37:39] <zeeshan> haha
[17:41:58] <andypugh> A friend of mine works at ESO, I will have to remember to taunt him when next we meet.
[17:42:33] <DaViruz> Extremely Small Observatory?
[17:42:34] <DaViruz> :)
[17:44:25] <andypugh> European Southern Observatory. There is a slightly odd novel about what it is like to work there by a vague acquaintance: http://www.amazon.co.uk/gp/product/B00BU3LLZ4?psc=1&redirect=true&ref_=oh_aui_d_detailpage_o09_
[17:53:34] <XXCoder> hey cnc fanbois
[17:56:35] <andypugh> ¿que?
[17:57:54] <XXCoder> qaStaH loD?
[17:59:54] <andypugh> By the way, if you wish you were a Mad Scientist, you will probably enjoy this, http://www.girlgeniusonline.com/comic.php?date=20021104#.VG0p44fg1U0
[18:00:02] <zeeshan> i really fucking will never work on a cnc machine again
[18:00:05] <zeeshan> without a wiring diagram
[18:00:08] <zeeshan> this has been a nightmare
[18:00:15] <zeeshan> now im looking at the speed selector stuff
[18:00:21] <zeeshan> it makes NO sense
[18:00:45] <XXCoder> oh they finished the story? I gonna catch up
[18:00:53] <zeeshan> https://www.flickr.com/photos/128539016@N05/15210012634/
[18:01:02] <zeeshan> how is one supposed to know how this circuit board works!!!
[18:01:05] <zeeshan> without a diagram :{
[18:01:25] <XXCoder> wow gonna love ye olde circuit boards
[18:01:42] <andypugh> zeeshan: They don’t want _you_ to know, they want you to pay them for knowing.
[18:01:50] <XXCoder> looked up serial #?
[18:02:20] <zeeshan> yea i looked up "indelco ag 801 531-1"
[18:02:39] <zeeshan> andypugh: well shit, i need a wiring diagram to hook the pinouts
[18:02:43] <zeeshan> i dont care how the board works :P
[18:02:51] <zeeshan> just need to know what terminals those wires need
[18:04:45] <andypugh> You can often find things out about a board from the RF testing code. (I have forgotten the acronym)
[18:05:24] <andypugh> There is a database that will tell you who certified the board, and that tells you the real manufacturer
[18:05:53] <zeeshan> i dont see any numbers on it
[18:05:56] <zeeshan> other than what isee in that pic
[18:08:51] <andypugh> That looks like an intereting board. Presumably the layout is delibrate. Is it extremely high voltage?
[18:09:27] <zeeshan> no
[18:09:34] <zeeshan> its a 24V board i'm assuming.
[18:09:56] <zeeshan> it has something to do with the motors
[18:10:05] <zeeshan> that shift the gears for the transmission
[18:10:08] <renesis> prob hall sensors?
[18:10:13] <zeeshan> youre right
[18:10:23] <zeeshan> the ugs-3020t is the only thing i can find details on
[18:10:29] <zeeshan> and it comes up as "magnetically activated switches"
[18:10:33] <renesis> nice bushings for a PCB, heh
[18:10:47] <andypugh> There has to be a reason for the layout?
[18:11:12] <zeeshan> "these devices are magnetically activated electronic switches utilizing hall effect for sensing magnetic field. each circuit consists of a silicon hall generator, amplifier, trigger and output stage integrated with its own voltage regulator onto a monolitihc silicon chip"
[18:11:27] <zeeshan> "circuit outputs can be directly interfaced with a bipolar or MOS logic circuits"
[18:11:28] <renesis> that sounds like amplified and schmitt trigger hall sensor
[18:11:34] <zeeshan> the pinouts i see are vcc, gnd and vout
[18:11:38] <renesis> yeah what the datasheet says
[18:11:58] <zeeshan> so let me get this straight
[18:12:10] <renesis> ive played with sot23 sensors like that
[18:12:13] <zeeshan> these sensors are picking up the magnetic fields from the motors that mount to this circuit?
[18:12:13] <zeeshan> ?!?
[18:12:14] <andypugh> Does that board bolt to the back of three motors?
[18:12:19] <zeeshan> yes
[18:12:23] <renesis> yeah
[18:12:31] <andypugh> I wonder why?
[18:12:35] <zeeshan> https://www.flickr.com/photos/128539016@N05/15536981611/
[18:12:41] <zeeshan> thats how its assembled
[18:12:47] <renesis> thats why i said hall sensors, theyre positioned like for pole detection on a motor
[18:12:47] <andypugh> There are not enough sensors for a brushless motor
[18:12:58] <zeeshan> maybe they pick up the teeth?
[18:13:03] <zeeshan> on the gears electors?
[18:13:13] <zeeshan> wait theres a weird rod on it.
[18:13:28] <renesis> andypugh: it maybe has a ref magnet
[18:13:52] <renesis> shrug, ive seen two and three sensor setups
[18:14:02] <renesis> and hall sensors with optical sensors
[18:14:07] <zeeshan> this nonsense is the last thing ineed to figur eout
[18:14:10] <zeeshan> andf i can start wiring stuff up
[18:14:14] <_methods> wow i swear to god i just heard on the news they want to build a moat around the white house
[18:14:23] <andypugh> Ah, yes, each actuator has two positions for gear selection and the magnets/sensors tell the system when to stop the motor.
[18:14:32] <renesis> meryan00: to keep the what out?
[18:14:38] <renesis> _methods: ^
[18:14:51] <_methods> i guess the fences aren't workig lol
[18:14:56] <zeeshan> https://www.flickr.com/photos/128539016@N05/15806560136/
[18:14:56] <_methods> so now they want to build a moat
[18:15:00] <zeeshan> this is what the motors look like on the other side
[18:15:11] <_methods> they need to do that shit minecraft style and fill it with lava
[18:15:32] <renesis> is that rod magnetized?
[18:15:34] <renesis> wtf
[18:15:38] <zeeshan> it must be
[18:15:42] <zeeshan> thats the only thing that would make sense
[18:16:22] <andypugh> it seems like it might be quite simple. Three two-position levers for 8 gears, the system chooses a gear, and moves each motor to the right position, sensed by the 6 sensors.
[18:16:27] <zeeshan> https://www.flickr.com/photos/128539016@N05/14926219104/in/photostream/lightbox/
[18:16:41] <zeeshan> the rod goes through and attaches inside those splined teeth
[18:17:11] <andypugh> There is a magent on each internal-toothed gear
[18:17:43] <andypugh> ( I can see them)
[18:18:10] <zeeshan> in the last pic i posted?
[18:18:14] <andypugh> Yes
[18:18:27] <zeeshan> how do you zoom in in flickr
[18:18:30] * zeeshan doesnt know
[18:19:11] <andypugh> The phasing of the outer gear and magnet to the inner gear is likely to be critical, don’t disturn it without making reference marks and photos
[18:20:01] <zeeshan> so this board has 12 pins.
[18:20:06] <andypugh> So, each shaft makes about 4 full turns to select a gear and the outer ring gear and magnet tells the system when to stop
[18:20:10] <zeeshan> i know 9 wires from this board went to the control cabinet
[18:20:23] <zeeshan> 3 wires came from the optical photointerruptor on the spindle
[18:20:40] <zeeshan> so all this voltage regulator stuff
[18:20:50] <andypugh> Yeah, forget all that. This is screaming “GPIO and HAL component”
[18:20:52] <zeeshan> with that big ass resistor might be to step the voltage dowjn from 24v to 5v
[18:21:30] <zeeshan> so all i should care about
[18:21:39] <zeeshan> is the signals going to and coming from each one of those hall sensors
[18:21:44] <zeeshan> thats all i need on this board?
[18:22:00] <zeeshan> because based on those, i can pass the motor power through a relay
[18:22:08] <zeeshan> and that relay will be activated through 7i77 w/ linuxcnc
[18:22:21] <andypugh> I bet you 50p that if you wind the inner gears so that the magnets are at the various 3-o-clock and 9-o-clock positions you can select all 8 gears.
[18:22:50] <zeeshan> wind = rotate?
[18:23:07] <zeeshan> winding to me is like "winding a torsional spring"
[18:23:08] <zeeshan> :)
[18:23:15] <andypugh> Make sure that the motors only need to turn one way, it may be that there are internal stops.
[18:23:26] <zeeshan> there are internal stops
[18:23:30] <zeeshan> i moved those splines manually
[18:23:34] <zeeshan> and engaged it in different gears
[18:23:47] <zeeshan> there seems to be 4 positions per gear
[18:23:49] <andypugh> Right, so you need bidirectional control of the motors.
[18:24:11] <andypugh> There may be 2 positions and 2 neutrals
[18:24:37] <andypugh> (for each shaft)
[18:24:52] <zeeshan> i have a diagram for another machine that is _similar_
[18:24:58] <andypugh> But as the sensors can’t see the neutrals, I doubt it.
[18:24:58] <zeeshan> but might be different
[18:25:34] <zeeshan> https://www.dropbox.com/sh/ti3t81sxkky36in/AAAGffuUME_d8rCreVbBW2Jxa/SCHEMATICS?dl=0#lh:null-maho_400e_schematics_10.png
[18:25:45] <zeeshan> er ignore that one.
[18:25:53] <zeeshan> https://www.dropbox.com/sh/ti3t81sxkky36in/AAAGffuUME_d8rCreVbBW2Jxa/SCHEMATICS?dl=0#lh:null-maho_400e_schematics_12.png
[18:25:55] <zeeshan> this is it
[18:26:24] <zeeshan> https://www.dropbox.com/sh/ti3t81sxkky36in/AAAGffuUME_d8rCreVbBW2Jxa/SCHEMATICS?dl=0#lh:null-maho_400e_schematics_15.png
[18:26:25] <zeeshan> this is better
[18:26:36] <zeeshan> 4 positions "left right center left-middle"
[18:26:40] <zeeshan> whatever left middle is lol
[18:26:57] <andypugh> I would make a table for each of the 8 magent positions (left or right) turn the input shaft by hand, counting turns, for one chuck rotation. If the input shaft won’t turn in some positions then perhaps the neutral posiitons are important, but without a sensor for positive detection I dount it.
[18:27:32] <zeeshan> the thing is
[18:27:39] <zeeshan> its hard to tell if its engaged in a gear when moving by hand
[18:27:59] <zeeshan> its not like lathe gear selection on a lathe
[18:28:06] <zeeshan> where you can "hear" it click in
[18:28:22] <zeeshan> i guess i can rotate the spindle by hand
[18:28:29] <zeeshan> i mean the motor by hand
[18:28:37] <zeeshan> and see if the spindle spins, if it spins, i know its a discrete position
[18:28:47] <andypugh> That is what I was suggesting, and get a table ot gear ratios
[18:29:07] <zeeshan> once i have my table
[18:29:12] <zeeshan> how would the control work?
[18:29:23] <andypugh> I am moderately sure that the magnets should only be left or right, not anywhere inbetween
[18:29:49] <zeeshan> well to check that
[18:29:53] <zeeshan> i can power one of the hall sensors
[18:29:58] <zeeshan> and rotate the spindle by hand
[18:30:02] <zeeshan> spindle = gear
[18:30:23] <zeeshan> and see for each gear, what v_out is for each of the hall sensors per motor
[18:30:29] <zeeshan> (so 3x per motor)
[18:30:33] <andypugh> As for control, looks like CL or custom HAL component.
[18:30:45] <andypugh> You need to move motors, and that’s stateful
[18:31:12] <zeeshan> hall sensors output => input 7i77. output 7i77 -> relay -> motors
[18:31:13] <zeeshan> ?
[18:31:41] <zeeshan> im gonna play around with this circuit board
[18:31:43] <zeeshan> definitely interesting
[18:32:03] <zeeshan> i could transfer the concept over to the lathe
[18:32:10] <zeeshan> and have excellent torque
[18:32:32] <zeeshan> thanks!
[18:32:36] <andypugh> Ignoring for the moment where the gear request comes from, you would need to determine that Gear 3 was left-right-left (for example) and then move the motors until that was true before enabling the spindle.
[18:33:42] <tjtr33> im doing some state machine work in hal now, each state exits returning the next state to be executed.
[18:34:26] <andypugh> This is more fun in that you have three consecutive state machines.
[18:35:01] <andypugh> And that is how you would code it, run the three state machines in sequence, and enable spindle when all are back to state 0.
[18:35:54] <andypugh> zeeshan: Get your table and I will try to hack together a component, it sounds like fun.
[18:37:10] <andypugh> But now I need to sleep.
[18:37:14] <andypugh> Night all.
[18:37:44] <tjtr33> Loetmichel, heres a funny about your single malt http://www.adweek.com/adfreak/laphroaig-scotch-doesnt-mind-if-you-think-it-tastes-burning-hospital-158069
[18:45:12] <zeeshan> i found where the 24v should go in
[18:45:15] <zeeshan> and ground it
[18:45:20] * zeeshan crosses fingers and powers this baord up
[18:53:27] <CaptHindsight> http://www.securityweek.com/court-order-shuts-down-alleged-120m-tech-support-scam I knew my linux registry wasn't corrupted!
[18:53:58] <XXCoder> ohno!
[18:54:00] <XXCoder> lol
[18:54:31] <XXCoder> if I was hearing, if someone called and said my windows has corruption problems, I would say...
[18:55:04] <XXCoder> "yeah my windows keeps accepting bribes of millions bucks a day from oil companies to be lax on safety and pollution. what do you suggest?"
[19:31:03] <zeeshan> well its not as easy as i thought it'd be
[19:31:06] <zeeshan> powered the board with 24v
[19:31:12] <zeeshan> tried spinning the motors while monitoring some of the other pinouts
[19:31:21] <zeeshan> it doesn't seem to be a discrete output.
[19:36:10] <_methods> hahah if this was easy everyone would have a cnc lol
[19:37:00] <zeeshan> well
[19:37:03] <zeeshan> this feature isnt really necessary
[19:37:07] <zeeshan> i can shift the gears by hand
[19:37:09] <zeeshan> since i have vfd
[19:37:13] <zeeshan> i only need back gear and high gear
[19:37:14] <zeeshan> thats it
[19:37:21] <zeeshan> but it'd be nice to shift it atuomatically
[19:37:27] <zeeshan> to get optimum torque range
[20:57:48] <zeeshan> on cars they have load switches for the window motors
[20:57:54] <zeeshan> is there a proper name for these types of switches
[20:58:06] <zeeshan> load switch yields weird results :P
[21:03:12] <CaptHindsight> relay
[21:03:34] <zeeshan> its like a circuit breaker
[21:03:35] <zeeshan> it self trips
[21:04:29] <CaptHindsight> and self resetting
[21:05:16] <CaptHindsight> http://www.littelfuse.com/products/resettable-ptcs.aspx
[21:07:10] <LeelooMinai> zeeshan: I would say it's just "circuit breaker", just resettable type
[21:07:27] <zeeshan> okay :p
[21:07:44] <zeeshan> LeelooMinai: decode my electrical circuit
[21:07:44] <zeeshan> :/
[21:08:06] <LeelooMinai> You encoded it? :)
[21:08:11] <zeeshan> no :-(
[21:08:17] <zeeshan> manufacturer did
[21:08:20] <CaptHindsight> it depends on if it's just a current protection device that resets itself or is also a relay
[21:09:16] <LeelooMinai> I am still trying to figure out if it's legal for me to run that 240V to my room
[21:09:22] <zeeshan> it is
[21:09:34] <zeeshan> its no differnt than having a dryer in your room
[21:09:35] <zeeshan> :P
[21:09:39] <LeelooMinai> Without any inspection/approval?
[21:09:42] <zeeshan> infact baseboard heaters are 240v
[21:10:07] <zeeshan> doing it yourself
[21:10:17] <zeeshan> and not having it certified means you can get owned for insurance purposes
[21:10:29] <[cube]> i recently found out owning a 3d printer can render your home insurance useless - best to check ;)
[21:10:43] <zeeshan> cube
[21:10:44] <LeelooMinai> ...
[21:10:45] <zeeshan> decode my circuit!!!
[21:10:46] <zeeshan> :[
[21:10:51] <[cube]> haha
[21:10:55] <[cube]> would if i could
[21:10:59] <LeelooMinai> [cube]: How so?
[21:11:17] <zeeshan> im suprised they covered ssi's house fire
[21:11:20] <CaptHindsight> what type of 3D printer?
[21:11:20] <zeeshan> and his laser did it
[21:11:23] <[cube]> insurance? its a fire hazard
[21:11:30] <[cube]> im not clear on that
[21:11:37] <[cube]> might only apply to hombrews
[21:11:53] <LeelooMinai> I wonder if having cnc in my room is bad too
[21:12:04] <[cube]> because i imagine makerbots etc have some kind of manufacturing certification for safe home use
[21:12:20] <CaptHindsight> are they UL listed?
[21:12:24] <[cube]> i think its mainly the temperatures involved and flammable plastic, cnc is probably fine
[21:12:24] <zeeshan> why do you guys think
[21:12:29] <zeeshan> i spend so much time going over my design shit
[21:12:36] <zeeshan> if a component failed and something went on fire
[21:12:41] <zeeshan> at least i can show them documentation
[21:12:44] <zeeshan> it'll hold up in court
[21:12:48] <[cube]> ah
[21:12:51] <[cube]> good thinking
[21:13:03] <zeeshan> because in a case like this
[21:13:08] <zeeshan> insurance will try to take your for negligence
[21:13:12] <zeeshan> *you
[21:13:19] <LeelooMinai> Hmm, I wonder how much is such inspection/certification
[21:13:25] <zeeshan> LeelooMinai: a lot
[21:13:25] <zeeshan> haha
[21:13:33] <[cube]> i just enclose dangerous components in metal enclosures, put a smoke detector and dont leave it unattended :P
[21:13:38] <zeeshan> it cost me 500 bux to get my 200amp garage panel inspected
[21:13:46] <[cube]> but that doesnt cover other fire causes
[21:13:48] <zeeshan> [cube]: exactly man
[21:13:51] <LeelooMinai> Damn...
[21:13:56] <[cube]> i wonder if something else cause a fire, and they still owned you for having a pritner
[21:14:25] <zeeshan> [cube]: just gotta have proof
[21:14:32] <[cube]> yea but
[21:14:40] <[cube]> the policy migh tsay in fine print "no printers allowed"
[21:14:45] <[cube]> regardless of the cause
[21:14:54] <zeeshan> thats why you dont tell your insurance
[21:14:56] <zeeshan> you have a welder
[21:14:58] <zeeshan> for example :P
[21:15:02] <[cube]> lol
[21:15:03] <zeeshan> asap you tell em, they start putting restrictions
[21:15:18] <[cube]> the only thing i worry about more than printer right now is chop saw :P
[21:15:35] <zeeshan> i honestly think the most dangerous thing in the garage
[21:15:41] <zeeshan> is the propane and oxygen tanks stored.
[21:15:48] <[cube]> yeah
[21:15:50] <zeeshan> i sometimes feel like they'll fall down cause a spark
[21:15:51] <zeeshan> and blow up
[21:16:05] <[cube]> i have some 30 year old oxy/acetalene tanks
[21:16:08] <zeeshan> haha
[21:16:08] <[cube]> that probably need to go
[21:16:17] <[cube]> they havent been filled in 20 years
[21:16:20] <[cube]> and i still use them
[21:16:25] <[cube]> not often mind u
[21:16:30] <LeelooMinai> [cube]: Either that or you will have to go:)
[21:16:33] <zeeshan> rofl
[21:16:42] <[cube]> take me, lord!
[21:16:55] <zeeshan> did i mention to you guys
[21:16:58] <zeeshan> i fucking hate electronics?
[21:17:02] <[cube]> haha
[21:17:07] <zeeshan> every time i look at these circuit boards
[21:17:14] <zeeshan> i am so happy i left uottawa EE
[21:17:17] <zeeshan> and did ME
[21:17:17] <[cube]> zeeshan can you not replace that component and bypass it, or is it integral to function
[21:17:18] <CaptHindsight> zeeshan: http://www.st.com/web/catalog/sense_power/FM1965/CL2148/SC1037/PF245860
[21:17:28] <zeeshan> no it snot a failed component
[21:17:33] <zeeshan> i just dont know what its outputting at the pins
[21:17:37] <zeeshan> i found +24vdc and ground
[21:17:39] <zeeshan> so i can power it
[21:17:45] <[cube]> is there no way to find out?
[21:17:51] <zeeshan> but i have no clue what the hall switches output
[21:17:57] <zeeshan> im sure there is by a competent electronics person
[21:18:01] <zeeshan> != zeeshan
[21:18:20] <[cube]> hmm
[21:18:25] <[cube]> this is for the readouts?
[21:18:32] <zeeshan> nice CaptHindsight
[21:18:34] <zeeshan> no cube
[21:18:37] <zeeshan> this is for the speed selectors
[21:18:41] <zeeshan> i got 3 motors on each gear
[21:18:49] <zeeshan> they change position to select different gears
[21:18:50] <[cube]> hm
[21:19:13] <zeeshan> https://www.flickr.com/photos/128539016@N05/15536981611/
[21:20:07] <[cube]> interesting
[21:20:23] <[cube]> what previously controlled them?
[21:20:29] <zeeshan> the old school cnc controller
[21:20:31] <zeeshan> i was a tard
[21:20:33] <tjtr33> /join ##electronics might help
[21:20:35] <zeeshan> and didnt pay attention removing the wires
[21:20:36] <[cube]> no clues there?
[21:20:42] <[cube]> ah :/
[21:20:46] <zeeshan> theres 9 wires
[21:20:52] <zeeshan> 2 i know are +24vdc one is ground
[21:20:58] <zeeshan> so 7 unknowns :)
[21:21:19] <renesis> that board is prob really easy to reverse
[21:21:35] <zeeshan> well i found the quad type op amp on it
[21:21:41] <renesis> more so than the encoder for the encoder
[21:21:47] <zeeshan> i dunno what a F4528BDC is
[21:22:55] <renesis> its 2 pin?
[21:23:09] <zeeshan> 16 pin
[21:23:21] <zeeshan> https://www.flickr.com/photos/128539016@N05/15210012634/in/photostream/lightbox/
[21:23:23] <renesis> so its not the fairchild fuse
[21:23:31] <zeeshan> its the chip right below the square type capacitors
[21:23:34] <zeeshan> 2 square type
[21:23:39] <LeelooMinai> "How Much Does Adding an Electrical Outlet Cost? Generally, adding a 240V outlet means installing a new 240V circuit on the main electrical panel, at a cost of $300-$800."
[21:23:42] <zeeshan> the ic below that is the quad op amp
[21:23:44] <renesis> how do i zoom
[21:23:48] <LeelooMinai> That made me sad
[21:23:58] <renesis> fuck flickr
[21:24:05] <zeeshan> i dunno some people were zooming in
[21:24:07] <zeeshan> i dont know how to either rofl
[21:24:11] <zeeshan> LeelooMinai: do you know?
[21:24:15] <zeeshan> you use flickr too
[21:24:17] <CaptHindsight> yeah no copy or zoom :(
[21:24:39] <LeelooMinai> Right mouse button?
[21:24:40] <CaptHindsight> stop using flicker if you want help
[21:24:56] <renesis> srsly
[21:25:09] <renesis> just put the shit on imgur like a normal person
[21:25:10] <zeeshan> suggest a better site
[21:25:11] <zeeshan> imgur sux
[21:25:14] <renesis> ?
[21:25:15] <zeeshan> it makes your images smaller
[21:25:18] <renesis> ?
[21:25:29] <LeelooMinai> Or left - I see magnifying glass by default, click = zoom
[21:25:29] <CaptHindsight> imagebin.ca
[21:25:30] <renesis> you can get to them in full res?
[21:25:40] <zeeshan> you can with flickr too
[21:25:44] <zeeshan> if you download the image!
[21:25:44] <zeeshan> haha
[21:25:44] <renesis> how
[21:25:48] <renesis> oh wtf
[21:26:05] <renesis> retarded
[21:26:12] <zeeshan> im sure there is a way to zoom in
[21:26:16] <zeeshan> ppl have been doing it, i
[21:26:19] <zeeshan> i just dont know how
[21:26:23] <zeeshan> other than to download the image
[21:26:36] <zeeshan> https://www.flickr.com/photos/128539016@N05/15807464256/
[21:26:40] <zeeshan> heres a better zoom of it
[21:26:42] <[cube]> zeeshan, on imgur you just open the image in a new tab, it links to the JPG url full res
[21:26:51] <zeeshan> cube ok
[21:26:52] <zeeshan> oh
[21:26:55] <LeelooMinai> You guys don't have magnifying glass cursor on flickr?
[21:26:58] <[cube]> i typically middle click them
[21:27:04] <zeeshan> LeelooMinai: no?
[21:27:06] <zeeshan> ss?
[21:27:29] <zeeshan> https://www.flickr.com/photos/128539016@N05/15211671703/
[21:27:30] <zeeshan> another one
[21:27:39] <zeeshan> you can see the 3 hall switches
[21:27:46] <LeelooMinai> I have and just lef-clock to zoom
[21:27:48] <zeeshan> i figured out where the vcc and ground are for those
[21:27:52] <LeelooMinai> left-click
[21:27:57] <zeeshan> left click changes the pic..
[21:28:01] <zeeshan> to the next one for me
[21:28:26] <LeelooMinai> Weird - I have magnifying glass by default
[21:28:31] <zeeshan> what browser?
[21:28:38] <LeelooMinai> Chrome
[21:28:41] <CaptHindsight> http://www.oemsemi.com/ic/4528BDC/505467.html
[21:28:42] <zeeshan> im usefirefox
[21:28:56] <[cube]> top right full screens it
[21:28:59] <renesis> well reverse the board anyway
[21:29:03] <[cube]> no magnifying glass here
[21:29:05] <renesis> the ic might be obvious from context
[21:29:35] <renesis> so its prob a pulse generator
[21:29:41] <renesis> maybe one shots
[21:29:52] <zeeshan> https://www.flickr.com/photos/128539016@N05/15645946927/
[21:29:54] <zeeshan> back side of baord
[21:30:01] <zeeshan> notice how it says 106
[21:30:06] <zeeshan> thats the V_out from the hall
[21:30:23] <zeeshan> pin #5 on the very top is 24vdc
[21:30:34] <zeeshan> pin 8 and 9 are ground
[21:32:00] <zeeshan> im gonna spend another hour trying to figure this out
[21:32:03] <zeeshan> if i fail
[21:32:10] <zeeshan> im welding on handles onthe gear selectors
[21:32:15] <zeeshan> f this speed selector nonsense
[21:32:17] <zeeshan> :-)
[21:32:24] <Tom_itx> heh
[21:34:44] <zeeshan> hmmm 4528BDC = "dual monostable multivibrator"
[21:34:46] <zeeshan> sounds very sexual
[21:35:32] <renesis> can use them for creating specific pulse patterns from an edge
[21:35:36] <CaptHindsight> semiconductor logic is full of sexual innuendo
[21:35:43] <renesis> heh
[21:36:11] <zeeshan> im gonna draw this board in cad
[21:36:16] <zeeshan> so i can visualize it better!
[21:36:28] <renesis> why not use a pencil?
[21:36:38] <zeeshan> good idea
[21:36:40] <zeeshan> :P
[21:37:15] <renesis> when i do it in cad i usually get caught up in the look of the schematic
[21:38:01] <renesis> once you have a wonky sketch worked out, much easier to put into cad if you need to
[21:52:14] <Connor> jdh: You around ?
[23:24:13] <XXCoder> http://hackaday.com/2014/11/19/laser-cut-album-released/
[23:24:16] <XXCoder> lol interesting